package com.example.testapp.activity.view.bitmap;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by l on 2016/7/6.
 */
public class Bimp {

    public static int max = 0;
    public static boolean act_bool = true;
    public static List<Bitmap> bmp = new ArrayList<>();

    public static Bitmap revitionImageSize(String path) throws IOException {
        BufferedInputStream is = new BufferedInputStream(new FileInputStream(new File(path)));
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeStream(is, null, options);
        is.close();
        int i = 0;
        Bitmap bitmap = null;
        while (true){
            if ((options.outWidth >> i <= 1000) && (options.outHeight >> i <= 1000)){
                is = new BufferedInputStream(new FileInputStream(new File(path)));
                options.inSampleSize = (int) Math.pow(2.0D, i);
                options.inJustDecodeBounds = false;
                bitmap = BitmapFactory.decodeStream(is, null, options);
                break;
            }
            i += 1;
        }
        return bitmap;
    }
}
